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The physics teacher is a coffee lover, so a group of students decided to make him a heating device as a project for his experiment. If the teacher usually boils 272 g of water to prepare two cups a day, what minimum power must the appliance have if to invest the water from 23.5 ° C to 100 ° C it takes 8.00 minutes? (Neglect any heat loss).
Two wires on a piano are the same length and are stretched to the same tension. Wire 1 vibrates at a frequency 1.5 times that of wire 2. Calculate the ratio of their masses (m1/m2).
An airplane reaches a velocity of 71.0m/s when it takes off. What is should its acceleration be if the runway is 1-km long.
Standing waves are set up on two strings fixed at each end, as shown in the drawing. The two strings have the same tension and mass per unit length, but they differ in length by 0.51 cm. The waves on the shorter string propagate with a speed of 41.3 ..
the electric field strength is 50000 nc inside a parallel-plate capacitor with a 2.0mm spacing. a proton is released
An electric field of magnitude 3.49 kN/C is applied along the x axis. Calculate the electric flux through a rectangular plane
A bottle of saline solution (with a specific gravity of 1.02) is attached to a 1.2 m long piece of tubing with a 1.0 cm inner diameter. If the tubing is held vertically, filled with saline, and clamped at the bottom, (a) what is the gauge pressure at..
A billiard ball moving at 5.30 m/s strikes a stationary ball of the same mass. Find the velocity (magnitude and direction) of the second ball after collision
How does Othello's language change and shift as a means to show his declining and increasingly frenzied mental state?
A mass of 20g is attached to a spring, and undergoes simple harmonic motion with a period of T=0.7 s. The total energy of the system is E=2.5 mJ. What is the force constant of the spring? What is the amplitude of the motion?
The blades in a blender rotate at a rate of 6900rpm. What is the angular acceleration as the blades slow down
A 15 kg crate block is falling. At a certain instant the block experiences a force due to air resistance of 87 N. Draw a free body diagram for the block, Determine the block’s acceleration at this instant
Research Paper (8 pages minimum typed, double-spaced not including Works Cited page) Please write a research paper on a subject that interests you (to do with Sociology).
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